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Finding the Fourth Proportional to 276,677.40, 415,016.10 and 274,927.80

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Solution

The fourth proportional to 276,677.40, 415,016.10 and 274,927.80 is: 412,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,677.40 : 415,016.10 = 274,927.80 : x
  2. Step 2: Convert to fraction form
    276,677.40/415,016.10 = 274,927.80/x
  3. Step 3: Cross multiply
    276,677.40x = 415,016.10 × 274,927.80
  4. Step 4: Simplify right side
    276,677.40x = 114,099,463,337.58
  5. Step 5: Solve for x
    x = 114,099,463,337.58/276,677.40
  6. Step 6: Final answer
    x = 412,391.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.